Chelmsford High’s Kristen Hohenstein and Acton-Boxboro’s Samantha Friborg were crowned state champions at Saturday’s MIAA Division 1 track-and-field meet held at the Reggie Lewis Center. Hohenstein captured the 55-meter hurdles in 8.6 seconds and Friborg won the 600 meters in 1:33.69, which broke a meet record previously set in 2013.